This commit drops the `before_action :preload_json` callback in `ApplicationController` as it adds unnecessary complexity to `ApplicationController` as well as other controllers which has to skip this callback. The source of the complexity comes mainly from the following two conditionals in the `preload_json` method:
```
# We don't preload JSON on xhr or JSON request
return if request.xhr? || request.format.json?
# if we are posting in makes no sense to preload
return if request.method != "GET"
```
Basically, the conditionals solely exists for optimization purposes to ensure that we don't run the preloading code when the request is not a GET request and the response is not expected to be HTML. The key problem here is that the conditionals are trying to expect what the content type of the response will be and this has proven to be hard to get right. Instead, we can simplify this problem by running the preloading code in a more deterministic way which is to preload only when the `application` layout is being rendered and this is main change that this commit introduces.
We want to allow admins to make new required fields apply to existing users. In order for this to work we need to have a way to make those users fill up the fields on their next page load. This is very similar to how adding a 2FA requirement post-fact works. Users will be redirected to a page where they can fill up the remaining required fields, and until they do that they won't be able to do anything else.
We will be collecting the logo URL and the site's default locale values along with existing basic details to display the site on the Discourse Discover listing page. It will be included only if the site is opted-in by enabling the "`include_in_discourse_discover`" site setting.
Also, we no longer going to use `about.json` and `site/statistics.json` endpoints retrieve these data. We will be using only the `site/basic-info.json` endpoint.
Now forums can enroll their sites to be showcased in the Discourse [Discover](https://discourse.org/discover) directory. Once they enable the site setting `include_in_discourse_discover` to enroll their forum the `CallDiscourseHub` job will ping the `api.discourse.org/api/discover/enroll` endpoint. Then the Discourse Hub will fetch the basic details from the forum and add it to the review queue. If the site is approved then the forum details will be displayed in the `/discover` page.
This is useful in the DiscourseHub mobile app, currently the app queries
the `about.json` endpoint, which can raise a CORS issue in some cases,
for example when the site only accepts logins from an external provider.
Zeitwerk simplifies working with dependencies in dev and makes it easier reloading class chains.
We no longer need to use Rails "require_dependency" anywhere and instead can just use standard
Ruby patterns to require files.
This is a far reaching change and we expect some followups here.
This reduces chances of errors where consumers of strings mutate inputs
and reduces memory usage of the app.
Test suite passes now, but there may be some stuff left, so we will run
a few sites on a branch prior to merging
The opensearch.xml results in a "site search engine" being added to
Chrome, while the sitelinks search tag results in "Search this website"
being added to Google Search.
